（1）图1中给出的是用螺旋测微器测量一金属薄板厚度时的示数，此读数应为______mm．
（2）在用电流表和电压表测电池的电动势和内电阻的实验中，所用的电流表和电压表的内阻分别为0.1Ω和1kΩ．图2右边为实验原理图，左边为所需器材实物图．试按原理图在实物图中画线连接成实验电路．
（1）由图可知，固定部分示数为5.5mm；可动部分示数为12.3～12.5； 故读数为：5.5+12.3×0.01=5.623mm（5.623～5.625均正确）；
（2）由上图可知，本实验采用的是伏安法测电动势和内电阻，先将电流表、变阻及开关、电源连接，再将电压表并联在电池及开关两端即可； 注意导线不能交叉，并且导线要接在接线柱上； 如右图所示；
故答案为：（1）5.623；（2）如右图所示．
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| Billy is a boy of fifteen. His parents died three years ago. One day when he was walking in the street, he 1 a wallet (钱包). He returned it to the owner, Mr. Baker. He gave his 2 to the boy. As the boy had no job, Mr. Baker made him work for him in his 3 . Billy worked so hard that Mr. Baker were 4 with him. Mr. Baker loved planting 5 . The week before last, he brought a few trees home, planted them in the 6 himself and watered them every day. Several days 7 , he had to leave for another city. Before he started, he said to Billy,"Take good care of the trees. Some boys near our house always want to steal them." "Please don't 8 about them, sir." answered Billy, "I'll try my best to watch them." Six days passed and Mr. Baker came back. He asked,"Has 9 ever come to steal the trees?" "No, sir." said Billy, "To stop someone from stealing the trees, I 10 them up six days ago. I have hidden them for almost a week!" |
| ( )1. A. found ( )2. A. wallet ( )3. A. factory ( )4. A. pleased ( )5. A. flower ( )6. A. garden ( )7. A. ago ( )8. A. think ( )9. A. something ( )10. A. sent | B. bought B. pity B. office B. angry B. grass B. office B. later B. talk B. one B. pulled | C. carried C. thanks C. town C. strict C. vegetables C. city C. before C. learn C. anyone C. put | D. wanted D. excuses D. home D. popular D. trees D. room D. after D. worry D. someone D. picked |